package top.hzy520.personalblog.controller.admin;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import top.hzy520.personalblog.po.Type;
import top.hzy520.personalblog.service.TypeService;

import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class TypeController {

    @Autowired
    private TypeService typeService;
    @GetMapping("/types")
    public String list(@PageableDefault(size = 3,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable, Model model){
      model.addAttribute("page",typeService.listTYpe(pageable));
     return "admin/types";
    }
    @GetMapping("/types/input")
    public  String input(Model model){
        model.addAttribute("type",new Type());
   return "admin/types-input";
    }
    @PostMapping("/types")
    public String post(@Valid Type type, BindingResult result, RedirectAttributes attributes){
        Type type2=typeService.getTypeByName(type.getName());
        if (type2!=null){
          result.rejectValue("name","nameError","不能重复添加分类");
        }
        if (result.hasErrors()){
            return  "admin/types-input";
        }
   Type type1= typeService.saveType(type);
   if (type1==null){
     attributes.addFlashAttribute("message","新增失败");
   }
   else {
       attributes.addFlashAttribute("message","新增成功");
   }
   return "redirect:/admin/types";
    }

    @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable Long id, Model model){
     model.addAttribute("type",typeService.getType(id));
     return "/admin/types-input";
    }

    @PostMapping("/types/{id}")
    public String editpost(@Valid Type type, BindingResult result,@PathVariable Long id, RedirectAttributes attributes){
        Type type2=typeService.getTypeByName(type.getName());
        if (type2!=null){
            result.rejectValue("name","nameError","不能重复添加分类");
        }
        if (result.hasErrors()){
            return  "/admin/types-input";
        }
        Type type1= typeService.updateType(id,type);
        if (type1==null){
            attributes.addFlashAttribute("message","更新失败");
        }
        else {
            attributes.addFlashAttribute("message","更新成功");
        }
        return "redirect:/admin/types";
    }

    @GetMapping("/types/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes attributes){
         typeService.deleteType(id);
        attributes.addFlashAttribute("message","删除成功");
      return "redirect:/admin/types";
    }
}
